Heraclius and the True Cross
Heraclius Returns with The Cross, Folio 156r

According to The Golden Legend, the seventh-century Byzantine emperor Heraclius rescued the cross from Persia and returned it to Jerusalem. He is shown here arriving in an elaborate chariot, based on a representation that appears on a medal owned by Jean de Berry. The gates of the city shut at his approach, for Christ entered the city on a lowly ass, not a horse-drawn carriage.